FR776304A - Manufacturing process of transparent face, anti-fog or not for masks - Google Patents

Manufacturing process of transparent face, anti-fog or not for masks

Info

Publication number
FR776304A
FR776304A FR776304DA FR776304A FR 776304 A FR776304 A FR 776304A FR 776304D A FR776304D A FR 776304DA FR 776304 A FR776304 A FR 776304A
Authority
FR
France
Prior art keywords
fog
masks
manufacturing process
transparent face
transparent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Inventor
George Francois Jaubert
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR776304A publication Critical patent/FR776304A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
    • A62B18/082—Assembling eyepieces, lenses or vision-correction means in or on gas-masks

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
FR776304D 1933-10-13 1933-10-13 Manufacturing process of transparent face, anti-fog or not for masks Expired FR776304A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR776304T 1933-10-13

Publications (1)

Publication Number Publication Date
FR776304A true FR776304A (en) 1935-01-23

Family

ID=9200956

Family Applications (1)

Application Number Title Priority Date Filing Date
FR776304D Expired FR776304A (en) 1933-10-13 1933-10-13 Manufacturing process of transparent face, anti-fog or not for masks

Country Status (1)

Country Link
FR (1) FR776304A (en)

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